Spring structure.



F. P. DAROY. SPRING STRUCTURE. APPLICATION IILBD JAN. 12, 1914.

Patented Feb. 2, 1915.

FRANK P. DAR-CY, OF KALAMAZOO, MICHIGAN.

SPRING STRUCTURE.

- Specification of Letters Patent.

Patented Feb. '2, 1915.

Application filed January 12, 1914. Serial No."811,576.

' To all whom it may; concern:

Be it known that I, FnA vK P. DAnor, a citizen of the United States, residing at Kalamazoo, Michigan, have invented certain new and useful Improvements in Spring Structures, of which the following is a specification.

This invention relates to improvements in spring structures. The ob ects of this invention are: First, to

"provide an improved structure in which helical or conical springs are used which can he readily transported in the knock-down and readily and quickly assembled in the supporting frame by inexperienced workmen. Second, to provide an improved spring structure in which the springs are securely and rigidly held in position without the use of separate connecting parts.

Further objects and objects relating to details and economies of construction and operation will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my winvention is clearly illustrated in the accom- .panying drawing forming a part of this ,ispecification, in which:

Figure I is a perspective view of a structure embodying the features of my inven' ticn. Fig. II is a transverse sectional View taken on the line 22 of Fig. I. Fig. III is a detail sectional view on line 3-3 of Fig. II, showing the engagement of the bottom coil of the spring with the slotsof the supporting bar. view of a spring connected, in accordance with my invention, to a modified form of supporting bar. Fig. V is a transverse sectional view on the line 55 of Fig. IV.

In the drawing similar reference characters refer to similar parts throughout the several views, and the sectional views are takeii looking in the direction of the little arrows at the ends of the section lines.

Considering the numbered parts of the drawing, 1 is a supporting bar provided at its edges with U-shaped flanges 2. These flanges are provided on their inner sides ,with the oppositely disposed slots 3, in

which the opposite edges of-the bottom coil 5 of the conical spring 4 engage. The coil Fig. IV is a perspective '5 issomewhat distorted so that it is practi cally elliptical in shape and it is disposed with its shorter axis transverse to the bar. The spring is seated in place in the support: ing bar by inserting one edge of the coil in one of the slots 3 and pressing down upon the coil so as to press the other edge of the coil to one side, compressing it between the flanges and allowing it to seat in the slot 8.

0n account of the elliptical shape, the coil is prevented from a twisting or lateral movement, and it is prevented from a vertical movement because of the fact that it is en gaged in the slots 3, 3 in the flanges 2.

In Figs. IV and V, I have shown a spring connected to a modified form of supporting bar in accordance with my invention, and in this modification, the supporting bar 6 is provided with the upturned flanges 7, 7, and is struck up at its center to form a ll-shaped bar. Slots 8, 3 are formed in the flanges 7 and the bottom coil is distorted to the form of an ellipse. The coil is struck upwardly at its center so as to conform somewhat to the shape of the supporting bar 6. The spring is seated as in the form shown in Figs. I to III, by inserting an edge of the coil in one of the slots 3 and pressing the other edge down past the edge of the flange 7 so as to snap it into place in the other slot 3. This form of supporting bar is very strong due to the ll-shape thereof.

' It will be seen that I have produced a very strong and efficient means for connecting a spring to a supporting bar. Due to this connection, the springs cannot shift either laterally or vertically and they can be readily assembled and seated in place by an inexperienced workman without the use of any tools or other mechanical devices.

I am aware that the particular embodiments which I have here shown are susceptible of considerable variation without departing from the spirit of my invention and I therefore do not wish to be restricted to the same. However, I have found that it is to be preferred and I therefore wish to claim it specifically as well as broadly as indicated by the appended claims.

Having thus described my invention,what I claim as new anddesire to secure by Letters Patent, is:

1. In a spring structure, the combination of a supporting bar having U-shaped flanges at the edges thereof, oppositely disposed slots in said flanges, and a conical spring Q i p a 1,127,198

detachably mounted on said bar having the bottom coil thereof elliptical in shape, sai coil being compressed between said flanges with the edges thereof seated in said slots under tension with the shorter axis of said coil disposed transverse to said supporting bar, all coacting substantially as described for the purpose specified. I

2. In a spring structure, the combination 1 of a supporting bar having flanges at the edges thereof, oppositely disposed slots in said flanges, and a conical spring detachably mounted onsaid bar having the bottom coil thereof elliptical in shape, said coil being compressed between said flanges with the edges thereof being seated in said slots under tension with the shorter axis of said coil disposed transverse to said supporting bar, all coacting substantially as described for the purpose specified.

3, In a structure of the class described,

the combinationof a supporting bar, up-

d standing "flanges on the edges of said bar,

said flanges being provided with oppositely disposed slots therein, and a conical spring detachably mounted on said bar and having the bottom coil thereof seated on said bar under tension, said coil beingcompressed between said-flanges into engagement with said slots, and being held against lateral movement by said flanges, and held against longitudinal movement by said slots, all coacting substantially as described'for the purpose specified.

In, witness whereof, I have hereunto set my hand and seal in the presence of two 7 witnesses.

v FRANK P. DARCY. a 8.]

Witnesses: f ,1

C. B. DES JARDTNS, 1?! LUELLA G. GREENFIELD; 

